Lighting device



FIG. 1 is a front perspective view of a lighting device, showing our design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a left side view thereof, the right side view is a mirror image of the left side view;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view thereof.

The broken line showing is superimposed on the continuous surface of the claimed design is for illustrative purposes only, and forms no part of the claimed design. 

We claim the ornamental design for a lighting device, as shown and described. 